Hi and welcome,
Please update to the latest Cubase 10.0.40. If it’s still crashing, upload the latest Cubase AI 10.0.40 crash, please.
For the other issue, make a new thread, please. Explain more in detail, what do you mean by “doesn’t recognize by default my montage 7”… Do you mean a control plug-in, or the MIDI Ports or an Audio Device of it…? Thanks.